Support for window-washers.



K. NAMBU.

SUPPORT FOR WINDOW WASHERS.

APPLICATWN FILED OCT. I2. 1916.

1 ,24; 1 ,424 Patented Sept. 25, 1917.

W a 5 P f? TTORIVEYS KIYOHIKO NAMB'U, OF SEATTLE, WASHINGTON.

SUPPORT FOR WINDOW-WASHERS;

To all whom it may concern Be it known that I, KIYOHIKO NAMBU, a subjectof the Emperor of Japan, residing at Seattle, in the county of King andState of Washington, have invented certain new and useful Improvementsin Supports for Window-Washers, and do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention relates to improvements in supports for window washers,and particularly to a device detachable and adjustable in dimensions tofit various sizes of window casings, and form a secure support for chairor platform for holding any person while washing or cleaning the outsideof windows on high walls of buildings.

With the objects of providing a simple and sure means of protectingwindow was ers or cleaners from danger and injuries of falling whileengaged in their work, and for other objects as more fully shown, thefollowing description and drawings are submitted.

Figure 1, represents a side View in section.

Fig. 2, is a perspective of the device, the seat being omitted.

Fig. 3, represents a front view showing the inner cross bar and a chairplatform supported on the outside of the window.

Fig. 4, represents. a back view, with a worker supported.

As is well known, the occupation of window washers and cleaners is verydangerous, for the reason that while engaged with their hands incleaning the outside of high windows, they are unable to use their handsfor holding to any portion of the windows or frames, and frequently losetheir balance and fall. My invention supplies a simple, safe, andpracticable device for use on various sizes of window casings, whichsupports a chair or other platform from which the worker can work withlittle danger of falling.

In describing my invention I use certain numerals, which on thedifferent figures, represent like parts of the device.

The supporting means consists of a cross bar 3 of suitable length toextend across a window on the inner side of its casings 16,16, withbracket arms extending at right angles from near its two ends. Eachbracket is substantially U shape with a straight arm land Specificationof Letters Patent. Patented Sept-25, 191

Application filed October 12,1916. 'Serial No. 125,258.

a lower arm 2 slightly bent to conform to the common slope of a windowbase plate 1 1, the portion beyond. the bend being represented by across line marked between 2 and 5, and the outer end of the lowersection of the arm being turned down to form a brace lug 7 through whichis threaded an adjusting screw 10 for binding the device securely inplace, and the two arms 1 and 2 are connected at the back end by acontinuous part 1- of the same material through which is also threadedanother adjusting and binding screw 8. The latter screw point isarranged to impinge against a metal plate 11 carried on its point with ashoulder on the screw rotatable in a socket in plate 11, which is a wellknown construction for binding screw points; the plate 11 in turn bearsagainst the cross bar 3. A third adjusting screw 9 is threaded throughthe lower arm with its point protruding downward to rest on the baseplate of the window and form an outer support adjustable for the outerportion of the arm.

A connecting brace 6 is attached to the outer ends of the U arms bysuitable bolts 12 and 12. Any suitable platform 18 may be bolted at 13,13, 13, across the ends of the duplicate sets of arms as they protrudeoutside the window casings, and any suitable guard 17 may be providedfor the outer edge of the platform to form a substantially constructedchair for the use of the operator and on which he may either stand orsit, with ease, while washing or cleaning the outsides of the windowpanes 20, or outer casings 16 It will be readily understood that forlarge wide windows, the two sets of arms may be adjusted upon the bar 3at any desired point, while the ends of the bar 3 will yet protrudeacross the inner sides of the window casings and prevent the supportedchair or platform from falling. The side of the bar 3 which bearsagainst the casings may if desired be provided with some soft materialto prevent marring the casing.

When the platform is in the desired position the operator tightens thescrews 8 and 10 against the lower casing and plate of the window, andadjusts the arms horizontally by the screw 9.

Having described my invention, I claim;

1. A window-bracket comprising a crossbar for engagement with the stilesof a casing, a pair of arms each comprising a frame within which saidbar is 'slidably embraced, screws at one end of the frame to adjust thebar against the casing, downwardly extending lugs on the lower side ofthe frames carrying screws to abut the sill-p1ate, and a seat attachedto said frames.

2. A window-bracket comprising a crossbar to bear against the innerstiles of a casing, and frames in which sald bar 1s mounted,

]0 comprising'each an upper and a lower element a perpendicularconnection at the inner end thereof, set screws in said connections toadjust the bar, a brace at the outer end of each frame, a downwardlyextending lug'on each frame having a set screw to engage the sill-plateand a seat connecting the frames.

In testimony whereof I afiiX my signature.

. KIYOHIKO 'NAMBU.

Qopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. 0. I

